Lot no. 433

10 c. grey-black with ample to large margins, tied by target with adjacent "GREVENMACHER 7 OCT. 56" to small envelope to Luxemburg, here re-addressed to Diekirch, franked with another 10 c. grey-black, tied by circle of bars and posted "LUXEMBOURG 11 OCT. 56", transit and arrival marks on reverse; a very attractive and extremely rare entire, certificate Böttger BPP (2016)